Just to mean, bags of talent and potential. Potential that people will talk about right up until 27/28 years old, and then wondered what happened to them a few years later to find out they've been tearing up some backwater league for fun having left the 'big' clubs wondering 'what the hell did we buy him for'...
Appreciate not quite the same as the other two, but I'm sure everyone can think of a player touted for the top, but actually only ended up being 'decent' before sliding into relative obscurity.
Is doing it in La Liga and nearly getting to a Champions League Final backwater?